In the board software list on the support website, the software names of E1LBE(S), E1TMR(S), and E3LWF(S) boards are all V1XX. However, in the version mapping table, the software version of the E3LWF(S) board is V3XX. The reason is that these boards share the same board software. According to the board software naming rules of Huawei, the name of E3 board software is V3XX, and the name of E1 board software is V1XX. Therefore, in the version mapping table, the software version of the E3LWF board is V3XX, while the software version of the E1LBE board is V1XX. The three types of boards have the same software, and the E1LBE board software is archived for them. As a result, the actual software version is V1XX, whereas the version of the E3LWF board in the version mapping table is V3XX. The E3LWF(S) board software can be upgraded even if the version is V1XX. After the upgrade, query the board software version on the CLI or NMS. The version V3XX indicates that the board software is normal.